Cyber Systems Engineer III

WHAT WE’RE DOING

At the dawn of a new age, Lockheed Martin is a pioneer, partner, innovator and builder. Our amazing workforce are on a mission to make a difference in the world. Our World‑class team leverages unique skills and experiences to create, design and build solutions to some of the worlds’ hardest engineering problems. Our culture encourages employees to dream big, perform with excellence and create incredible products.

We provide the resources, inspiration and focus and if you have the passion and courage to dream big, we want to build a better tomorrow with you.

We are leveraging emerging, digitally‑enabled capabilities to lower cost, speed up development time and create innovative solutions to best serve our customers and stakeholders. We’re bringing the 4th Industrial Revolution to every role in the company.

Are you ready to invent the future? Lockheed Martin Rotary & Mission Systems is on a journey of digital transformation as we leverage our data, modernize our processes and advance technology to advance our position as the world’s Aerospace and Defense leader.

The Cyber Software Engineer III is a senior‑level, technically‑deep role that bridges secure software development with embedded hardware platforms and complex networking infrastructures. This role is responsible for designing, developing, documenting, testing, and maintaining comprehensive cyber‑security solutions throughout the entire lifecycle of our information systems. Using a variety of automated assessment tools, such as ACAS, Nessus, Rapid7, SCAP/SCC, Evaluate‑STIG, custom scripts, and manual STIG checklists, the engineer conducts thorough system analyses, identifies security gaps, and creates actionable remediation plans.

In this position, the Cyber Software Engineer III drives system‑wide improvements, including the development of software‑patching strategies, vulnerability‑management roadmaps, and the adoption of new security technologies that strengthen overall resilience. A solid grasp of capability development is applied to shape, integrate, and monitor security strategies, while leveraging SIEM platforms and audit‑log management tools to maintain continuous situational awareness and threat detection.

A key part of the role is serving as the subject‑matter expert for colleagues who integrate security controls into hardware and software products. The engineer translates Risk Management Framework (RMF) requirements into practical guidance, ensuring that controls are correctly embedded, validated, and aligned with organizational policies.

Success requires advanced technical expertise, excellent written and verbal communication, and the ability to collaborate effectively with product owners, system architects, Dev Ops, and other cross‑functional teams to deliver robust, compliant cyber solutions.

• Ability to obtain and maintain a TOP SECRET security clearance.
• Possess or ability to obtain a CompTIA Security+ certification (or DoDM 8140.03 equivalent or higher certification) within 90 days of hire
• Bachelor’s degree in Computer Engineering, Electrical Engineering, Computer Science, Cybersecurity, or a closely related technical discipline. A Master’s degree or advanced coursework in cybersecurity, embedded systems, hardware security, or network engineering is strongly preferred.
• 6 + years of hands‑on software development/scripting in a cyber focused environment combined with demonstrable experience integrating software with hardware platforms (e.g., FPGA, ASIC, microcontrollers, sensor suites, or avionics). At least 3 years of work involving secure networking, cloud/on‑premise infrastructure, SIEM, and large‑scale system integration.

• Defense Information Systems Agency (DISA) Assured Compliance Assessment Solution (ACAS) scanning experience.
• Familiarity with Defense Information Systems Agency (DISA) Security Technical Implementation Guide (STIG) testing.
• Clear understanding of the Risk Management Framework (RMF) and its associated security controls. Candidate should be able to speak to each and every control and how to best implement it within a given environment.
• Pro…